An optical mask layer for a CT detector is disclosed and is disposed between the photodiode array and scintillator array of a CT detector. The optical mask layer, which may extend along the x-axis, z-axis, or both, is designed to absorb and/or reflect light emitted the scintillators of the scintillator...http://www.google.com.hk/patents/US7233640?utm_source=gb-gplus-share專利 US7233640 - CT detector having an optical mask layer
